Improvement in watchmen s time-checks



T. D. OSBORNE & W. W. Le GRANDE.

Watchmens Time-Check.

Patented Sept. 21, 1875.

WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE THOMAS D. OSBORNE AND WILLIAM W. LE GRANDE,LOUISVILLE, KY.

IMPROVEMENT IN WATCHMENS TIME-CHECKS.

Specification forming part of Letters Patent No. 167,925, datedSeptember 21, 1875; application filed August 21, 1875.

To all whom it may concern:

Be it known that we, THOMAS D. OSBORNE and WILLIAM W. LE GRANDE, ofLouisville, in the county of Jefferson and State of Kentucky, haveinvented a new and Improved Watchmans TimeOheck, of which the followingis a specification In the accompanying drawing, Figure 1 represents atop view, and Fig. 2 a vertical central section on the line 0 c, Fig. 1,of our improved watchmans time-check.

Similar letters of reference indicate corresponding parts.

Our invention relates to a simple time-registering attachment to anoffice or smaller clock by which the watchman may be readily detectedwhen he does not regularly perform his duties, the attachment being ofsimple, cheap, and convenient construction.

Theinvention consists of a perforated guidering, with sliding pins settherein, that are de pressed by a registering-pin of a spring applied tothe hour-hand, and operated by a central sliding button of the glassfront. A sliding base-ring sets the registering-pins forward again forrenewed action.

In the drawing, A represents a common clock-train of large or smallconstruction, according as the same is to be used as an officeclock, ormerely for registering. The clocktrain is incased in suitable manner,and locked securely, so that no meddling with the interior parts ispossible. The clock is hung to any suitable place on the wall, andprovided with a glass front, having a central guidesleeve, D, for thesliding spring-pin and button D, that is depressed by the watchman atthe appointed periods of time. The sliding pin D acts on a spring, 0,that is applied at one end of the index-hand B of the clocktrain, theother end being provided with a pin, a, with broad end, which passesthrough an eye of the hand to be brought successively in contact with aseries of sliding pins, 12, of a guide-ring, E, attached to theclock-frame.

The position and number of the pins correspond to the periods of time atwhich the watchman is compelled to register, the springpin of the handallowing only the pressing back of the pins when the hand indicates theproper time, but giving, by the size of the pins, a few minutes marginbefore or after the exact time, during which the pins may be set toallow for delays, in case the watchman is not promptly on hand to workthe register. A sliding base-ring, F, is moved forward by side lugs whenthe clock is placed in order for the weight, and carries all thecheck-pins forward until their back-collars come in contact with theguide-ring. I

Any one of the pins not depressed shows at an instant the neglect of thewatchman to perform his duty at the required time, and furnishes thus avery reliable time-check by a very simple attachment.

In place of the pins a paper disk may be used, that is perforated by theregistering-pin of the hand, but the working of the sliding pins iseasier, and less liable to retard the action of the clock-train.

The dial may be inside or outside of the guide-ring, as desired, andthus a perfect clock and reliable time-check obtained.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. In watchmans time-checks, the combination,with the hour-hand of the clock, and a band-spring and pin appliedthereto, of a spring-depressing button, of the glass front, and of aseries of time-registering pins, sliding in a guide-ring, arranged to bemoved back at fixed periods of time, substantially in the manner and forthe purpose set forth.

2. The combination, with the guide-rings and sliding pins, of a slidingbase-ring, that carries the pins forward again for renewed action,substantially as set forth.

3. The hour-indicating hand, having eye or perforation for passage ofoperating-pin at end of band-spring to strike the registeringpin belowat or about the fixed time, substantially as described.

THOS. D. OSBORNE. WILLIAM W. LE GRANDE. Witnesses:

B. F. D. FITOH, JOHN BRODERICK.

